Case IH LB434 Large Square Baler

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The LB434 square balers make short work of hay season with a 47x35 in bale size.


More Style. More Substance.

The LB4 series large square baler isn’t just another pretty piece of equipment: it is designed from the ground up for long life and superior performance. On the outside, the unique curved shape allows it to shed crop debris. The baler width has been reduced by 2 feet to improve visibility to the rear and sides of the baler and takes up less space on the road and in the shed. Composite side panels are lighter, rust proof and fade resistant. And underneath that curvy red exterior is an amazing workhorse that has more capacity than its forerunners.


• Three stage opening assembly: easy ground level access to key service points and full visibility of gearbox for routine checks
• Ground level flywheel brake lever has to be in place before you can raise the shield
• New styling includes a newly designed service platform. Which features one level for easy access to key bale chamber service points and knotters
• The foldable ladder provides quick access to the platform and stores easily without being an obstacle.

Operator Visibility

• Narrow sleek design of the LB4 series balers increases operator visibility to the rear and sides of the baler for increased operator efficiency
• Curved shape allows for crop debris to fall off baler for less ingress of debris into knotter assembly and twine storage areas resulting in less operator maintenance and increased performance

One Piece Design

• One piece twine box panels utilize durable thermoform technology
• Composite shields: a one piece design with automotive seals for minimal debris in twine box and provides easy maintenance and less ingress of debris into twine and knotters
• Front gearbox shield: a composite shield using rotomold technology for lighter weight and durability.
• Choose from either a Single Piece Roller Chute or Two Piece Roller Chute

Drive Option

• Same proven design
• Upgraded primary and secondary drivelines
• Offering increased capacity
• Three-joint design and angle input shaft reinforced reducing vibrations resulting in better reliability and longer life

Higher Efficiency Flywheel

• Larger diameter high-inertia flywheel resulting in 48% more energy, smoother operation and increased fuel efficiency.
• Heavier duty components inside the gearbox provides durability and an increased strokes per minute from 42 to 48 as well as giving 20% more capacity


• Larger tire options provide improved flotation and a lighter footprint
• Choice of three axle configurations: Single, Steered Tandem and arge Steered Tandem


Pack it in. And Stack 'em High.

Match your baler to your tractor and then match your bales to your feed, shipping and storage needs. Case IH LB4 series large square balers form bales that stack perfectly and are denser, thanks to things like left and right steering sensors that you can observe through your AFS Pro 700 display and quickly and easily adjust for perfect bale formation. In addition, a removable floor liner adjusts to different crop types. Adjust to your specifications, whether you’re baling for your own livestock or running a commercial hay operation.

Matched Systems

• New suspended roller wind guard with feed-assist roller to efficiently move your crop into the pre-chamber.
• Pickup is matched to the width of the bale chamber, cutter and pre-compression chamber widths match also.
• Results: better capacity, more efficiency and, ultimately, better bale quality
• New heavy duty pickup reel handles varied crop types including corn stalks and other tough stubble.

The Perfect Finish

• Reduce the risk of twine breakage with drive shaft-driven double knotters
• Increase daily output of dense bales that can stand up to rough handling
• Our best-in-class double knotters have new improved shielding: repositioned fans to keep them clean as well as providing protection and efficient operations
• Two separate spools feed twine directly to the top and bottom of the bale
• Reaching the preset bale length engages the knotter system
• Twine moves around the bale as it is formed eliminating stress on knotter components and providing greater reliability to the system and tying cycles
• Dual bale chamber ejector tines offer complete bale clearance and works independently to remove the rearmost bale 

Extras that Help you go the Extra Mile

• Twine storage with 16 balls on each side
• The easy-thread system allows you to keep baling when the conditions are right.
• Case IH ThirtyPlus™ liquid preservative
•Bales at a higher moisture content without worrying about heating or mold damage resulting in higher-feed-value bales
•For maximum flexibility and bale density, add an optional Case IH rotor cutter
•This system uses a large rotor to feed crop from the pickup through a row of spring-protected knives before entering the compression chamber.

Don't Let the Daylight Stop Your Productivity

• Newly designed oval lights
• Repositioned for greater visibility and come standard on all models
• Lights can be controlled from the comfort of your cab through the monitor soft key
•An optional service light package is available to provide optimal brightness for working at night


Make Case IH
Model LB434 Standard
Bale Size  
Bale width, in (mm) 47.2 (1200)
Bale height, in (mm) 35.4 (900)
Bale length, maximum, in (mm) 102.4 (2600)
Pickup working width, in (mm) 87.9 (2232)
Outer tine-to-tine width, in (mm) 80.6 (2046)
Number of tines 64 double (128)
Tine spacing, in (mm) 2.6 (66)
Number of tine bars or tine rows 4
Gauge wheel size Two 15x6.00-6 4PR
Cutter System  
Cutter knives None
Feeder Description 3 packer forks, 9 single tines
Stuffer Description Fork, 6 tines
Plunger speed, Strokes/minute 48
Plunger stroke, in (mm) 28 (710)
Main Drive  
Drive protection Shearbolt, overrunning clutch & slip clutch
Knotter Type Double knot
Number of knotters 6
Twine ball storage, quantity 32
Density Control  
Density Control 3-way monitor control
Tire size, Single axle 600/55x22.5, 12 ply
Tire size, Tandem Axle 500/50x17, 14 ply
Baler Dimensions  
Length w/bale chute extended, in (mm) np
Length w/bale chute folded, in (mm) 294.4 (7477)
Baler width, in (mm) 116.1 (2948)
Height, single axle, in (mm) 123.3 (3133)
Height, tandem axle, in (mm) 123.3 (3133)
Weight, empty, w/bale ejector & chute  
Weight, single axle, lbs (kg) 17,020 (7720)
Weight, tandem axle, lbs (kg) 18,342 (8320)
Tractor Requirement  
Tractor Power, hp (kW) 125 (93)
PTO Speed, rpm 1000
Number of remote hydraulic valves 2
Sales Literature  
Literature number HF-5138-12
Literature date 7/1/2012
Manual Number --
Manual Date --
Entry Date  
Manufacturing Status Current
Entry Date 8/1/2012
Revision Date --


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